WO2001023219A1 - Welded airbag cushion comprising sewn reinforcement seams - Google Patents

Welded airbag cushion comprising sewn reinforcement seams Download PDF

Info

Publication number
WO2001023219A1
WO2001023219A1 PCT/US2000/024937 US0024937W WO0123219A1 WO 2001023219 A1 WO2001023219 A1 WO 2001023219A1 US 0024937 W US0024937 W US 0024937W WO 0123219 A1 WO0123219 A1 WO 0123219A1
Authority
WO
WIPO (PCT)
Prior art keywords
fabric
airbag
fabrics
welded
bead
Prior art date
Application number
PCT/US2000/024937
Other languages
English (en)
French (fr)
Inventor
Ramesh Keshavaraj
Original Assignee
Milliken & Company
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Milliken & Company filed Critical Milliken & Company
Priority to JP2001526393A priority Critical patent/JP2003510214A/ja
Priority to BR0014193-3A priority patent/BR0014193A/pt
Priority to CA002379610A priority patent/CA2379610A1/en
Priority to DE60040750T priority patent/DE60040750D1/de
Priority to EP00961818A priority patent/EP1216168B1/en
Priority to MXPA02001884A priority patent/MXPA02001884A/es
Priority to AU73718/00A priority patent/AU7371800A/en
Publication of WO2001023219A1 publication Critical patent/WO2001023219A1/en

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R21/00—Arrangements or fittings on vehicles for protecting or preventing injuries to occupants or pedestrians in case of accidents or other traffic risks
    • B60R21/02—Occupant safety arrangements or fittings, e.g. crash pads
    • B60R21/16—Inflatable occupant restraints or confinements designed to inflate upon impact or impending impact, e.g. air bags
    • B60R21/23—Inflatable members
    • B60R21/235—Inflatable members characterised by their material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/40—General aspects of joining substantially flat articles, e.g. plates, sheets or web-like materials; Making flat seams in tubular or hollow articles; Joining single elements to substantially flat surfaces
    • B29C66/41—Joining substantially flat articles ; Making flat seams in tubular or hollow articles
    • B29C66/43—Joining a relatively small portion of the surface of said articles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
    • B29C66/72—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the structure of the material of the parts to be joined
    • B29C66/729—Textile or other fibrous material made from plastics
    • B29C66/7292—Textile or other fibrous material made from plastics coated
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
    • B29C65/04—Dielectric heating, e.g. high-frequency welding, i.e. radio frequency welding of plastic materials having dielectric properties, e.g. PVC
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/72—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by combined operations or combined techniques, e.g. welding and stitching
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/05—Particular design of joint configurations
    • B29C66/10—Particular design of joint configurations particular design of the joint cross-sections
    • B29C66/11—Joint cross-sections comprising a single joint-segment, i.e. one of the parts to be joined comprising a single joint-segment in the joint cross-section
    • B29C66/112—Single lapped joints
    • B29C66/1122—Single lap to lap joints, i.e. overlap joints
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/05—Particular design of joint configurations
    • B29C66/20—Particular design of joint configurations particular design of the joint lines, e.g. of the weld lines
    • B29C66/21—Particular design of joint configurations particular design of the joint lines, e.g. of the weld lines said joint lines being formed by a single dot or dash or by several dots or dashes, i.e. spot joining or spot welding
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/05—Particular design of joint configurations
    • B29C66/20—Particular design of joint configurations particular design of the joint lines, e.g. of the weld lines
    • B29C66/23—Particular design of joint configurations particular design of the joint lines, e.g. of the weld lines said joint lines being multiple and parallel or being in the form of tessellations
    • B29C66/232—Particular design of joint configurations particular design of the joint lines, e.g. of the weld lines said joint lines being multiple and parallel or being in the form of tessellations said joint lines being multiple and parallel, i.e. the joint being formed by several parallel joint lines
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
    • B29C66/71—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the composition of the plastics material of the parts to be joined
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
    • B29C66/73—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset
    • B29C66/739—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of the parts to be joined being a thermoplastic or a thermoset
    • B29C66/7392—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of at least one of the parts being a thermoplastic
    • B29C66/73921—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of at least one of the parts being a thermoplastic characterised by the materials of both parts being thermoplastics
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2022/00—Hollow articles
    • B29L2022/02—Inflatable articles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2022/00—Hollow articles
    • B29L2022/02—Inflatable articles
    • B29L2022/027—Air bags
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R21/00—Arrangements or fittings on vehicles for protecting or preventing injuries to occupants or pedestrians in case of accidents or other traffic risks
    • B60R21/02—Occupant safety arrangements or fittings, e.g. crash pads
    • B60R21/16—Inflatable occupant restraints or confinements designed to inflate upon impact or impending impact, e.g. air bags
    • B60R21/23—Inflatable members
    • B60R21/235—Inflatable members characterised by their material
    • B60R2021/23504—Inflatable members characterised by their material characterised by material
    • B60R2021/23509—Fabric
    • B60R2021/23514—Fabric coated fabric
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R21/00—Arrangements or fittings on vehicles for protecting or preventing injuries to occupants or pedestrians in case of accidents or other traffic risks
    • B60R21/02—Occupant safety arrangements or fittings, e.g. crash pads
    • B60R21/16—Inflatable occupant restraints or confinements designed to inflate upon impact or impending impact, e.g. air bags
    • B60R21/23—Inflatable members
    • B60R21/235—Inflatable members characterised by their material
    • B60R2021/23571—Inflatable members characterised by their material characterised by connections between panels
    • B60R2021/23576—Sewing
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R21/00—Arrangements or fittings on vehicles for protecting or preventing injuries to occupants or pedestrians in case of accidents or other traffic risks
    • B60R21/02—Occupant safety arrangements or fittings, e.g. crash pads
    • B60R21/16—Inflatable occupant restraints or confinements designed to inflate upon impact or impending impact, e.g. air bags
    • B60R21/23—Inflatable members
    • B60R21/235—Inflatable members characterised by their material
    • B60R2021/23571—Inflatable members characterised by their material characterised by connections between panels
    • B60R2021/2359—Welding

Definitions

  • the present invention relates to a method utilizing welds, reinforced with sewn seams, to adhere two fabrics together to form an inflatable airbag cushion.
  • welded seams provide better and more easily produced attachment points between multiple layers of fabrics, not to mention improved manners of reducing air or gas
  • Seam welding generally concerns the utilization of a film on the underside of a fabric which, upon contact with a second, film-treated fabric and upon exposure to high frequency energy, forms a bead of polymeric material at the attachment pont between the two fabric layers. Lower numbers of sewn seams may be utilized to permit sufficient reinforcement if the size of the formed polymeric bead if of sufficient size to permit thorough sealing and adhesion between the fabric layers.
  • Such a specific reinforced fabric, as well as high bead-size welded airbag fabrics are
  • Inflatable protective cushions used in passenger vehicles are a component of relatively complex passive restraint systems.
  • the main elements of these systems are: an impact sensing system, an ignition system, a propellant material, an attachment device, a system enclosure, and an inflatable protective cushion.
  • the propellant is ignited causing an explosive release of gases filing the cushion to a deployed state which can absorb the impact of the forward movement of a body and dissipate its energy by means of rapid venting of the gas.
  • the entire sequence of events occurs within about 30 milliseconds. In the undeployed state, the
  • cushion is stored in or near the steering column, the dashboard, in a door, or in the back of a front seat placing the cushion in close proximity to the person or object it is
  • Inflatable cushion systems commonly referred to as air bag systems have been used in the past to protect both the operator of the vehicle and passengers.
  • driver-side cushions are typically of a relatively simple configuration in that they function over a fairly small well-defined area between the
  • the majority of commercially used restraint cushions are formed of woven fabric materials utilizing multifilament synthetic yarns of materials such as polyester,
  • nylon 6 or nylon 6,6 polymers Representative fabrics for such use are disclosed in U.S. Patent 4,921,735 to Bloch; U.S. Patent 5,093,163 to Krummheuer et al.; U.S. Patent 5,110,666 to Menzel et al.; U.S. Patent 5,236,775 to Swoboda et al.; U.S. Patent 5,277,230 to Sollars, Jr.; U.S. Patent 5,356,680 to Krummheuer et al.; U.S. Patent 5,477,890 to Krummheuer et al; U.S. Patent 5,508,073 to Krummheuer et al.;
  • an airbag cushion structure is an important factor in determining the rate of inflation and subsequent rapid deflation following the impact event.
  • Different airbag cushions are utilized for different purposes. For instance, some airbag cushions are installed within inflation modules for driver protection within the steering column of an automobile. Others are utilized as protection for front seat passengers and are installed in and around the glove
  • the target airbag cushion must inflate quickly under high pressure (such as betweeen about 40 and 50 psi) and remain inflated at a relatively high pressures in order to provide the greatest degree of protection to such passengers.
  • high pressure such as betweeen about 40 and 50 psi
  • long- duration airbag cushions preferably comprise "pillow" formations created through the attachment of at least two different fabrics or fabric ends together and sealed, sewn, or the like, together. Upon inflation the free space between the attachment points inflate as well, thereby producing the desired cushioned "pillow" structures.
  • coatings comprise silicones which actually tend to act as yarn lubricants and thus not only do not prevent, but permit deleterious yarn shifting. Also, the amount and/or thickness required of such coatings is reltaively high which creates a tackiness problem between fabrics portions during storage in an inflation module. When the airbag cushion is packed tightly in such closed quarters, the coatings may
  • restraint system is intended to mean both inflatable occupant restraining cushion and the mechanical and chemical components (such as the inflation means, ignition means, propellant, and the like). It is a more particular object of the present invention to provide an airbag fabric wherein the reinforcement seam is sewn in an area adjacent
  • a further object of this invention is to provide an airbag fabric which comprises attachment points connected and held in place through the utilization of relatively large polymeric beads.
  • the present invention provides an airbag fabric for incorporation within an airbag cushion comprising at least one welded seam as a point of attachment between two fabric panels, wherein said airbag fabric also comprises at least one sewn seam located adjacent to said welded seam.
  • This invention also encompasses an airbag fabric for incorporation within an airbag cushion comprising at least one welded seam as a point of attachment between two fabric ends, wherein said welded seam comprises a polymeric bead having an average thickness of from about 2 to about 40 mils.
  • welded seam encompasses any attachment point between two
  • such a process entails the film-coating of the fabric panels with a polymeric dipolar thermoplastic material; contacting the film-coated panels; placing a high intensity electron discharging mold over the designated area of the fabric in which a seam is to be produced; applying such a high intensity electron field to the film-coated fabric
  • a distance closer to the edges of the fabric panels than the welded seam but close enough to increase the amount of fabric in contact with the polymeric bead of the welded seam is from about 0.1 cm to about 5 cm; preferably from about 0.1 cm to about 3 cm; more preferably from about 0.5 cm to about 2 cm; and most preferably from about 0.5 to about 1 cm.
  • the length of the sewn seams is not important, although a sufficient length is
  • seam is intended to encompass any type of seam produced by repeated stitching such as through the use of needle stitches, ultrasonic stitches, and the like. Any type of strong, industrial thread may be utilized which provides the necessary reinforcement strength to the welded seam. Thus, any size thread from about #40 to about #200 may be utilized.
  • the seam may be single-needle, preferably;
  • Another method of increasing the strength of the welded seam is to increase
  • the overall thickness of the polymeric bead produced by such a process This thickness increase will increase the contact surface area between the bead and the fabric thereby filling more interstitial space as well and ultimately reducing the potential for air or gas leaks through the airbag fabric. It has been found that this alteration of standard RF-welding techniques is the only manner to facilitate production of more leak-resistant fabrics. Theoretically, a modification of the geometry of such polymeric beads would also result in better contact between with the target fabric; however, such geometrical alterations is very difficult to accomplish since the polymeric film, during the welding process, orients itself to a spherical shape more easily and readily than other configurations. Thus, a bead thickness of at least four times the thickness of the polymeric film coating on the target fabric is necessary to effectuate the desired elongation and resultant adhesion of the bead to the fabric.
  • the preferred bead average thickness should be from about 2 to about 40 mils; preferably from about 5 to about 40 mils; more preferably from about 10 to about 30 mils; and most preferably from about 20 to about 30 mils.
  • a weld head must be utilized which requires a thickness itself of greater than 2,000 times the thickness of the film on the fabric surface. Thinner bead structures produce inconsistent weld strengths within the target fabrics since the direction of molten polymer flow over the fabric surface is very difficult to control, particularly if the curved area or straight- line area at the point of attachment of the
  • Two woven fabrics each comprising 420 denier nylon-6,6 yarns and exhibiting a 39 x 39 picks/ends per inch construction, were coated with 2.4 ounces of a standard polyurethane airbag coating plus adhesion promoter each fabric on one side of the target fabric. The coated surfaces were then contacted together and a weld head
  • Two woven fabrics each comprising 210 denier nylon-6,6 yarns and exhibiting a 55 x 55 picks/ends per inch construction, were coated with 2.7 ounces of a standard polyurethane airbag coating plus adhesion promoter each fabric on one side of the target fabric. The coated surfaces were then contacted together and a weld head

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Textile Engineering (AREA)
  • Air Bags (AREA)
  • Treatment Of Fiber Materials (AREA)
  • Lining Or Joining Of Plastics Or The Like (AREA)
PCT/US2000/024937 1999-09-24 2000-09-12 Welded airbag cushion comprising sewn reinforcement seams WO2001023219A1 (en)

Priority Applications (7)

Application Number Priority Date Filing Date Title
JP2001526393A JP2003510214A (ja) 1999-09-24 2000-09-12 縫製強化継目を含んでなる溶接エアバッグクッション
BR0014193-3A BR0014193A (pt) 1999-09-24 2000-09-12 Almofada de airbag soldada compreendendo emendas de reforço costuradas
CA002379610A CA2379610A1 (en) 1999-09-24 2000-09-12 Welded airbag cushion comprising sewn reinforcement seams
DE60040750T DE60040750D1 (de) 1999-09-24 2000-09-12 Geschweisste airbaghülle mit verstärkungsnähten
EP00961818A EP1216168B1 (en) 1999-09-24 2000-09-12 Welded airbag cushion comprising sewn reinforcement seams
MXPA02001884A MXPA02001884A (es) 1999-09-24 2000-09-12 Cojin de bolsa de aire soldado que comprende costuras de refuerzo cosidas.
AU73718/00A AU7371800A (en) 1999-09-24 2000-09-12 Welded airbag cushion comprising sewn reinforcement seams

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US09/406,000 1999-09-24
US09/406,000 US6364356B1 (en) 1999-09-24 1999-09-24 Airbag cushion comprising sewn reinforcement seams

Publications (1)

Publication Number Publication Date
WO2001023219A1 true WO2001023219A1 (en) 2001-04-05

Family

ID=23606118

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2000/024937 WO2001023219A1 (en) 1999-09-24 2000-09-12 Welded airbag cushion comprising sewn reinforcement seams

Country Status (11)

Country Link
US (2) US6364356B1 (pt)
EP (1) EP1216168B1 (pt)
JP (1) JP2003510214A (pt)
CN (1) CN1153698C (pt)
AT (1) ATE413312T1 (pt)
AU (1) AU7371800A (pt)
BR (1) BR0014193A (pt)
CA (1) CA2379610A1 (pt)
DE (1) DE60040750D1 (pt)
MX (1) MXPA02001884A (pt)
WO (1) WO2001023219A1 (pt)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6299965B1 (en) * 1999-11-17 2001-10-09 Milliken & Company Inflatable fabrics comprising peel seams which become shear seams upon inflation
EP1379406A1 (en) * 2001-04-17 2004-01-14 Milliken & Company Low permeability airbag and method
US6749220B1 (en) * 2001-02-16 2004-06-15 Key Safety Systems, Inc. Air bag and method of construction
EP1566259A1 (en) 2004-02-18 2005-08-24 INVISTA Technologies S.à.r.l. Fabric seam formation by radiation welding process
EP1652737A3 (en) * 2004-10-28 2007-01-17 Takata Corporation Airbag and airbag apparatus
DE102006032805A1 (de) * 2006-07-14 2008-01-17 Bst Safety Textiles Gmbh Verfahren zum Herstellen einer Naht

Families Citing this family (36)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6770578B2 (en) 1999-06-07 2004-08-03 Bradford Industries, Inc. Laminated textile fabrics for use in air holding vehicle restraint systems
US6239046B1 (en) 1999-06-07 2001-05-29 Bradford Industries, Inc. Polysiloxane coated fabrics for use in air bags
US6753275B2 (en) * 1999-06-07 2004-06-22 Bradford Industries, Inc. Laminated multi-layered woven textile fabrics for use in air holding vehicle restraint systems
US6734125B2 (en) 1999-06-07 2004-05-11 Bradford Industries, Inc. Laminated multi-denier mixed fabrics for use in inflatable vehicle restraint systems
US6734123B2 (en) 1999-06-07 2004-05-11 Bradford Industries, Inc. Polyurethane coated fabrics for use in air-holding vehicle restraint systems
US6740607B2 (en) * 1999-06-07 2004-05-25 Bradford Industries, Inc. Substrate with stretch and heat sealing properties to make a multidirectional restraint module design
US6364356B1 (en) * 1999-09-24 2002-04-02 Milliken & Company Airbag cushion comprising sewn reinforcement seams
JP3760211B2 (ja) * 2000-06-30 2006-03-29 豊田合成株式会社 エアバッグ
SE523328C2 (sv) * 2001-02-06 2004-04-13 Fov Fabrics Ab Uppblåsbar luftsäck och förfarande att tillverka sådan
US6805374B2 (en) * 2001-02-08 2004-10-19 Autoliv Asp, Inc. Inflatable curtain cushion
US7017945B2 (en) * 2002-05-17 2006-03-28 Depottey Timothy Active venting apparatus and method for airbag systems
GB2393692A (en) * 2002-10-01 2004-04-07 Autoliv Dev Air bag with reinforced apertures in gas duct
US20050211147A1 (en) * 2004-03-24 2005-09-29 Waterfield Laura M Translucent applique cutwork machine embroidery and method
US7784822B2 (en) * 2004-07-26 2010-08-31 Nxgen Technologies, Inc. Inflatable airbag
US20060192054A1 (en) * 2004-10-13 2006-08-31 Lachenmeier Timothy T Inflatable and deployable systems with three dimensionally reinforced membranes
US9241580B2 (en) 2005-01-14 2016-01-26 Sage Products, Llc Body transport apparatus with integrated handles
US9125777B2 (en) 2005-01-14 2015-09-08 Sage Products, Llc Body transport apparatus
US8276222B1 (en) 2005-01-14 2012-10-02 Smart Medical Technology, Inc. Patient transfer kit
US20060163853A1 (en) * 2005-01-21 2006-07-27 Ramesh Keshavaraj Air bag with gas blocking sealant at sewn seams
DE202005001182U1 (de) * 2005-01-25 2005-06-09 Trw Automotive Safety Systems Gmbh Gassack einer Rückhalteeinrichtung
US20060192372A1 (en) * 2005-02-28 2006-08-31 Takata Restraint Systems, Inc. Coated sewing thread for airbag and method of sealing an airbag
US20060237957A1 (en) * 2005-04-22 2006-10-26 Takata Restraint Systems, Inc. Sealed cushion
US7681917B2 (en) 2005-06-24 2010-03-23 Zodiac Automotive Us Inc. Sealing and reinforcing strips principally for airbag assembly joints
CA2649406C (en) * 2006-04-12 2012-06-26 Norbert Huber Airbag fabric
US20100129575A1 (en) * 2008-08-30 2010-05-27 Veiga Manuel J Polyvinyl chloride coated fabrics for use in air bags
US7651118B1 (en) 2008-08-30 2010-01-26 Bradford Industries, Inc. Polyvinyl chloride coated fabrics for use in air bags
US8267423B2 (en) * 2009-03-31 2012-09-18 Tk Holdings Inc. Airbag
US8376401B2 (en) 2010-01-27 2013-02-19 Tk Holdings Inc. Airbag
DE102010029230B4 (de) * 2010-05-21 2016-05-12 TAKATA Aktiengesellschaft Gassackvorrichtungen für Personen-Schutzsysteme eines Fahrzeugs und Verfahren zur Herstellung einer Gassackvorrichtung
KR101995477B1 (ko) * 2013-09-03 2019-07-02 코오롱인더스트리 주식회사 에어백 및 그의 제조 방법
MX2016003891A (es) * 2013-09-30 2016-06-17 Key Safety Systems Inc Bolsa de aire con costura sellada.
CN105239244B (zh) * 2015-09-08 2017-10-31 可隆（南京）特种纺织品有限公司 一种气囊用包装袋及其加工方法
MX2018005538A (es) 2015-11-06 2018-11-09 Invista Textiles Uk Ltd Tela de baja permeabilidad y alta resistencia y metodos para hacer la misma.
CA3060311C (en) 2017-05-02 2022-05-24 Invista Textiles (U.K.) Limited Low permeability and high strength woven fabric and methods of making the same
BR112020006305A2 (pt) 2017-09-29 2020-09-24 Invista Textiles (U.K.) Limited airbags e métodos para a produção de airbags
CN112549558B (zh) * 2020-11-13 2022-06-21 骆炳华 一种空间布气胀式制品的制作方法及空间布气胀式制品

Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2046171A (en) * 1979-04-06 1980-11-12 Woodroof Lab Inc Fabric Elastomer Composite
JPS6427928A (en) * 1987-07-24 1989-01-30 Terumo Corp Ultrasonic fusion welding of sheet material
US5222932A (en) * 1991-07-25 1993-06-29 Allied-Signal Inc. Air bag and method of manufacture
US5511821A (en) * 1994-12-21 1996-04-30 Morton International, Inc. Vehicle restraint system cushion with sacrificial tear seam
US5630620A (en) * 1994-09-01 1997-05-20 Takata Corporation Reinforced thermoplastic resin film air bag
US5746856A (en) * 1992-04-10 1998-05-05 W. L. Gore & Associates, Inc. Method of ultrasonically welding articles of porous polytetrafluoroethylene
US5782489A (en) * 1996-08-23 1998-07-21 Trw Vehicle Safety Systems Inc. Air bag with adhesive at seams
US5879767A (en) * 1990-12-27 1999-03-09 Bridgestone Corporation Air bag
US5997035A (en) * 1996-08-06 1999-12-07 Takata Corporation Resin air bag
US6019390A (en) * 1998-04-30 2000-02-01 Milliken & Company Multiple panel airbag
US6103325A (en) * 1994-04-15 2000-08-15 Angelica Corporation Ultrasonically bonded seam in an autoclavable fabric

Family Cites Families (74)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2372632A (en) 1942-11-18 1945-03-27 Singer Mfg Co Finishing seam and method
US2525355A (en) 1943-02-27 1950-10-10 Rca Corp Method of bonding materials electrically
US3454442A (en) * 1965-10-19 1969-07-08 Heller William C Jun Art of thermally joining materials
FR1591785A (pt) 1968-11-06 1970-05-04
DE2105428A1 (de) 1971-02-05 1972-08-24 Uniroy al AG, 5100 Aachen Sicherheitsvorrichtung in Fahrzeugen zur Verminderung des Aufpralles
US3990726A (en) 1975-04-23 1976-11-09 Nissan Motor Co., Ltd. Inflatable and semi-crushable safety bag for vehicle passenger
US4010055A (en) 1975-06-06 1977-03-01 Nissan Motor Co., Ltd. Method of producing three-dimensionally shaped inflatable safety bag
US4090897A (en) * 1977-04-22 1978-05-23 The Sinclair Company Ultrasonic welding of thermoplastic fabrics
DE3544248C1 (de) 1985-12-14 1987-01-29 Audi Ag Aufblasbares Aufprallschutzkissen
DE8714595U1 (de) 1987-11-03 1988-01-28 Bloch, Klaus, 5205 St Augustin Airbag für Kraftfahrzeuge
US4860395A (en) 1988-05-24 1989-08-29 Smith Michael G Water-cooled lounging pad
JPH02162134A (ja) 1988-12-15 1990-06-21 Takata Kk エアバッグ装置におけるエアバッグ
JPH0310946A (ja) 1989-06-08 1991-01-18 Asahi Chem Ind Co Ltd エアーバッグ
DE69008723T2 (de) * 1989-06-16 1994-12-15 Gore & Ass Gaskissen aufprallschutzvorrichtung und dazugehöriger schichtstoff sowie prozess zur herstellung dieses schichtstoffs.
JPH02237837A (ja) 1989-08-29 1990-09-20 Takata Kk エアバッグ
EP0416483B2 (de) 1989-09-07 2004-09-15 Akzo Nobel N.V. Unbeschichtetes Gewebe für Airbags
JPH03186448A (ja) 1989-12-15 1991-08-14 Takata Kk パッセンジャー用エアバッグ
US5236775A (en) 1990-02-12 1993-08-17 Hoechst Aktiengesellschaft Fabric for airbag
WO1991018760A1 (fr) 1990-05-30 1991-12-12 Takata Kabushiki Kaisha Coussin pneumatique gonflable pour installation de securite anticollision
US5087071A (en) 1990-08-01 1992-02-11 Trw Vehicle Safety Systems Inc. Vehicle air bag structure and method of forming
GB2251410B (en) * 1990-12-28 1994-06-29 Airbags Int Ltd Air bag
US5508073A (en) 1991-02-26 1996-04-16 Akzo Nv Uncoated fabric for manufacturing air bags
US5110666A (en) 1991-05-06 1992-05-05 Reeves Brothers, Inc. Coated fabric structure for air bag applications
EP0523546B1 (de) 1991-07-16 1999-03-10 Akzo Nobel N.V. Technische Gewebe mit gezielt eingestellter Luftdurchlässigkeit und hoher Alterungsbeständigkeit sowie Verfahren zu deren Herstellung
US5316337A (en) 1992-03-30 1994-05-31 Toyo Tire & Rubber Co., Ltd. Inflatable bags for airbag passive restraint systems for front seat passenger and methods for manufacturing thereof
JPH0616099A (ja) 1992-06-30 1994-01-25 Toshiba Silicone Co Ltd エアバッグ
US6106646A (en) * 1992-09-14 2000-08-22 General Electric Company Method for joining composite materials
US5310216A (en) 1992-10-30 1994-05-10 Alliedsignal Inc. Flat sew pattern passenger air bag
US5277230A (en) 1993-02-22 1994-01-11 Milliken Research Corporation Double twillwoven air bag fabric
DE4314347A1 (de) 1993-04-30 1994-11-03 Trw Repa Gmbh Aufblasbarer Gassack für Rückhaltesysteme in Fahrzeugen
US5482317A (en) 1993-06-28 1996-01-09 Sandia Corporation Structurally efficient inflatable protective device
US5365651A (en) 1993-07-01 1994-11-22 Morton International, Inc. Airbag assembly system and tool
DE59406816D1 (de) 1993-07-31 1998-10-08 Akzo Nobel Nv Verfahren zur Herstellung von unbeschichteten technischen Geweben
US5469863A (en) 1993-08-11 1995-11-28 Polygenex International, Inc. Polyurethane condom of welded polyurethane film
US5423273A (en) 1994-02-01 1995-06-13 General Motors Corporation Single seam cube shaped restraint cushion
US5407223A (en) 1994-02-04 1995-04-18 Morton International, Inc. Slide-together airbag module
US5405164A (en) 1994-03-04 1995-04-11 Morton International, Inc. Hybrid inflator retention in automotive airbag module
US5503197A (en) 1994-03-30 1996-04-02 Milliken Research Corporation Method for producing high weave density airbag fabric on a water-jet loom using unsized yarns
US5454587A (en) 1994-07-08 1995-10-03 Morton International, Inc. Connector for mounting inflator in airbag module
US5458364A (en) 1994-08-22 1995-10-17 Morton International, Inc. Inflator secured in diffuser housing of airbag module assembly by locking end cap
US5520414A (en) 1994-11-23 1996-05-28 Milliken Research Corporation Inflatable restraint cushion
GB2326385B (en) 1995-02-20 1999-08-25 Autoliv Dev Improvements in or relating to a safety device
US5692777A (en) 1995-04-27 1997-12-02 Minnesota Mining And Manufacturing Company Low permeability inflatable restraint fabric
US6083584A (en) * 1998-01-30 2000-07-04 Baxter International Inc. Perimeter seals for multi-layer materials and method
US5544911A (en) 1995-07-05 1996-08-13 Morton International, Inc. Airbag module diffuser with flange extensions
US5564738A (en) 1995-08-10 1996-10-15 Morton International, Inc. Overflow channeling reaction canister assembly
US5498024A (en) 1995-08-17 1996-03-12 Morton International, Inc. Inflatable restraint assembly
US5553886A (en) 1995-08-22 1996-09-10 Morton International, Inc. Flangeless airbag inflator with mounting adaptor
US5547212A (en) 1995-08-22 1996-08-20 Morton International, Inc. Passenger side airbag inflator with flanged mounting adapter
US5670577A (en) * 1995-09-29 1997-09-23 H. B. Fuller Licensing & Financing, Inc. Waterproof hot melt composition for stitched seams
US5566973A (en) 1995-10-04 1996-10-22 Morton International, Inc. Advanced passenger inflator with slide in attachment to extruded module
US5620200A (en) 1995-10-31 1997-04-15 Morton International, Inc. Airbag module reaction canister endwall with airbag inflator mount
US5564739A (en) 1995-12-07 1996-10-15 Takata, Inc. Side impact airbag module with soft cover
JPH09164890A (ja) * 1995-12-15 1997-06-24 Bridgestone Corp エアバッグ
US5667307A (en) 1996-03-18 1997-09-16 Chiu; Hua Tsung Article holding bag of non-woven fabric and a method for making the same
JPH09323605A (ja) * 1996-03-27 1997-12-16 Morton Internatl Inc 自動車の乗客室内の占有者を保護する方法とエアバッグクッションを折りたたむ方法
US5704402A (en) 1996-04-01 1998-01-06 Milliken Research Corporation Air bag fabric
US5709405A (en) 1996-04-10 1998-01-20 Morton International, Inc. Variable mass flow airbag module
JPH09301104A (ja) * 1996-05-17 1997-11-25 Kansei Corp サイドエアバッグ装置のエアバッグ構造
US5652389A (en) 1996-05-22 1997-07-29 The United States Of America As Represented By The Secretary Of Commerce Non-contact method and apparatus for inspection of inertia welds
US5683100A (en) 1996-07-12 1997-11-04 Morton International, Inc. Airbag cushion retainer with annular sewing area
JPH1059104A (ja) * 1996-08-12 1998-03-03 Bridgestone Corp エアバッグ
JPH10102029A (ja) * 1996-09-30 1998-04-21 Toagosei Co Ltd エアバッグ用接着剤、エアバッグおよびその製法
JP3731266B2 (ja) * 1996-10-24 2006-01-05 豊田合成株式会社 側部用エアバッグの製造方法
GB2320914B (en) * 1997-01-06 2001-05-16 Alliedsignal Deutschland Gmbh Airbag
US5833265A (en) * 1997-02-21 1998-11-10 Takata, Inc. Airbag with excursion restrictors
GB2328650A (en) * 1997-08-27 1999-03-03 Alliedsignal Deutschland Gmbh Welded airbag cushion
DE19739558A1 (de) * 1997-09-09 1999-03-11 Takata Europ Gmbh Verfahren zur Herstellung eines Luftsacks
EP0906824A1 (en) * 1997-10-01 1999-04-07 W.L. GORE & ASSOCIATES GmbH Laminate with textile layer made of bicomponent yarn
JP2000016210A (ja) * 1998-06-30 2000-01-18 Nippon Plast Co Ltd エアバッグ
JP3876560B2 (ja) * 1998-08-20 2007-01-31 タカタ株式会社 自動車乗員頭部の保護バッグ
JP3790052B2 (ja) * 1998-09-25 2006-06-28 株式会社湘南合成樹脂製作所 管ライニング材の製造方法
US6220629B1 (en) * 1999-04-21 2001-04-24 Breed Automotive Technology, Inc. Cushion with increased seam strength and method of assembly
US6364356B1 (en) * 1999-09-24 2002-04-02 Milliken & Company Airbag cushion comprising sewn reinforcement seams

Patent Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2046171A (en) * 1979-04-06 1980-11-12 Woodroof Lab Inc Fabric Elastomer Composite
JPS6427928A (en) * 1987-07-24 1989-01-30 Terumo Corp Ultrasonic fusion welding of sheet material
US5879767A (en) * 1990-12-27 1999-03-09 Bridgestone Corporation Air bag
US5222932A (en) * 1991-07-25 1993-06-29 Allied-Signal Inc. Air bag and method of manufacture
US5746856A (en) * 1992-04-10 1998-05-05 W. L. Gore & Associates, Inc. Method of ultrasonically welding articles of porous polytetrafluoroethylene
US6103325A (en) * 1994-04-15 2000-08-15 Angelica Corporation Ultrasonically bonded seam in an autoclavable fabric
US5630620A (en) * 1994-09-01 1997-05-20 Takata Corporation Reinforced thermoplastic resin film air bag
US5511821A (en) * 1994-12-21 1996-04-30 Morton International, Inc. Vehicle restraint system cushion with sacrificial tear seam
US5997035A (en) * 1996-08-06 1999-12-07 Takata Corporation Resin air bag
US5782489A (en) * 1996-08-23 1998-07-21 Trw Vehicle Safety Systems Inc. Air bag with adhesive at seams
US6019390A (en) * 1998-04-30 2000-02-01 Milliken & Company Multiple panel airbag

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6299965B1 (en) * 1999-11-17 2001-10-09 Milliken & Company Inflatable fabrics comprising peel seams which become shear seams upon inflation
US6749220B1 (en) * 2001-02-16 2004-06-15 Key Safety Systems, Inc. Air bag and method of construction
EP1379406A1 (en) * 2001-04-17 2004-01-14 Milliken & Company Low permeability airbag and method
EP1379406A4 (en) * 2001-04-17 2005-03-30 Milliken & Co AIRBAG WITH LOW PERMEABILITY AND PROCEDURE
EP1566259A1 (en) 2004-02-18 2005-08-24 INVISTA Technologies S.à.r.l. Fabric seam formation by radiation welding process
WO2005080066A1 (en) 2004-02-18 2005-09-01 Invista Technologies S.A.R.L. Fabric seam formation by radiation welding process
EP1652737A3 (en) * 2004-10-28 2007-01-17 Takata Corporation Airbag and airbag apparatus
DE102006032805A1 (de) * 2006-07-14 2008-01-17 Bst Safety Textiles Gmbh Verfahren zum Herstellen einer Naht

Also Published As

Publication number Publication date
US20020067034A1 (en) 2002-06-06
JP2003510214A (ja) 2003-03-18
CN1374909A (zh) 2002-10-16
AU7371800A (en) 2001-04-30
EP1216168A4 (en) 2005-04-27
CN1153698C (zh) 2004-06-16
EP1216168A1 (en) 2002-06-26
ATE413312T1 (de) 2008-11-15
US6598902B2 (en) 2003-07-29
DE60040750D1 (de) 2008-12-18
BR0014193A (pt) 2002-05-21
CA2379610A1 (en) 2001-04-05
MXPA02001884A (es) 2002-08-20
EP1216168B1 (en) 2008-11-05
US6364356B1 (en) 2002-04-02

Similar Documents

Publication Publication Date Title
EP1216168B1 (en) Welded airbag cushion comprising sewn reinforcement seams
US6299965B1 (en) Inflatable fabrics comprising peel seams which become shear seams upon inflation
US6019390A (en) Multiple panel airbag
US6299205B1 (en) Vehicle restraint system comprising an airbag having a looped pocket for inflation canister disposition
US20020043792A1 (en) Multiple panel airbag and method
US6837517B2 (en) Multiple panel airbag and method
WO2003093059A2 (en) Modular air bag cushion system
US6344251B1 (en) Welded airbag structure
WO1999008903A1 (en) Simplified air bag configuration
US6183009B1 (en) Inflatable airbag and a method of manufacturing the same
EP1237712B1 (en) Inflatable fabric with peel seams
EP1652737B1 (en) Airbag and airbag apparatus
JPH02279442A (ja) エアバッグ装置
WO1991018767A1 (en) Air bag unit
US20020041086A1 (en) Three-dimensional passenger airbag and method
EP1097063A1 (en) Vehicle restraint system comprising an airbag having an integrated mouth
CA2380713A1 (en) Inflatable gas bag and method for manufacturing same

Legal Events

Date Code Title Description
AK Designated states

Kind code of ref document: A1

Designated state(s): AE AG AL AM AT AU AZ BA BB BG BR BY BZ CA CH CN CR CU CZ DE DK DM DZ EE ES FI GB GD GE GH GM HR HU ID IL IN IS JP KE KG KP KR KZ LC LK LR LS LT LU LV MA MD MG MK MN MW MX MZ NO NZ PL PT RO RU SD SE SG SI SK SL TJ TM TR TT TZ UA UG UZ VN YU ZA ZW

AL Designated countries for regional patents

Kind code of ref document: A1

Designated state(s): GH GM KE LS MW MZ SD SL SZ TZ UG ZW AM AZ BY KG KZ MD RU TJ TM AT BE CH CY DE DK ES FI FR GB GR IE IT LU MC NL PT SE BF BJ CF CG CI CM GA GN GW ML MR NE SN TD TG

121 Ep: the epo has been informed by wipo that ep was designated in this application
DFPE Request for preliminary examination filed prior to expiration of 19th month from priority date (pct application filed before 20040101)
WWE Wipo information: entry into national phase

Ref document number: 2379610

Country of ref document: CA

WWE Wipo information: entry into national phase

Ref document number: PA/a/2002/001884

Country of ref document: MX

WWE Wipo information: entry into national phase

Ref document number: 00812924X

Country of ref document: CN

WWE Wipo information: entry into national phase

Ref document number: 2000961818

Country of ref document: EP

ENP Entry into the national phase

Ref country code: JP

Ref document number: 2001 526393

Kind code of ref document: A

Format of ref document f/p: F

WWP Wipo information: published in national office

Ref document number: 2000961818

Country of ref document: EP

REG Reference to national code

Ref country code: DE

Ref legal event code: 8642